[NPM] Fix recent unit test failures from each controller

[JungukCho]

Reason for Change:

This PR is to fix unit test failures in each controller. The root cause for the issues is that extra events are called even though controller's unit test does not call them. So, the result of unit tests are different from expected values. Since we activate all capabilities of sharedInformer, extra events are called based on sharedinformer's local cache.
Especially this issue comes up recently since a new extension for controller's unit tests by using fake exec seems to take longer than real exec. Thus, there is enough time for sharedInformer to call multiple events.
To make deterministic unit test for each controller, unit tests almost only leverage sharedInformer's local cache.

Issue Fixed:

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests

Notes: